GB836354A - Improvements in or relating to photometers - Google Patents

Improvements in or relating to photometers

Info

Publication number
GB836354A
GB836354A GB3417955A GB3417955A GB836354A GB 836354 A GB836354 A GB 836354A GB 3417955 A GB3417955 A GB 3417955A GB 3417955 A GB3417955 A GB 3417955A GB 836354 A GB836354 A GB 836354A
Authority
GB
United Kingdom
Prior art keywords
mirror
lens
hole
photo
cell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3417955A
Inventor
John Alexander Reid
Kenneth Norman Chandler
Ronald Leslie Moore
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB3417955A priority Critical patent/GB836354A/en
Publication of GB836354A publication Critical patent/GB836354A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

836,354. Measuring reflection. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 28, 1957 [Nov. 29, 1955], No. 34179/55. Class 40 (3). In a photometer for measuring the efficiency of a reflex reflector, light from a source S passes through a small hole E, a half-silvered mirror M and a collimating lens D to the reflector R from which it is returned through the lens D and reflected by the mirror M on to a photo-cell P, the hole E and a hole G in front of the photo-cell P being at the focal distance from the lens D. A light chopper C and a filter F may be provided. Back reflection from the mirror M may be absorbed by a surface LA.
GB3417955A 1955-11-29 1955-11-29 Improvements in or relating to photometers Expired GB836354A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3417955A GB836354A (en) 1955-11-29 1955-11-29 Improvements in or relating to photometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3417955A GB836354A (en) 1955-11-29 1955-11-29 Improvements in or relating to photometers

Publications (1)

Publication Number Publication Date
GB836354A true GB836354A (en) 1960-06-01

Family

ID=10362367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3417955A Expired GB836354A (en) 1955-11-29 1955-11-29 Improvements in or relating to photometers

Country Status (1)

Country Link
GB (1) GB836354A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111323251A (en) * 2020-04-14 2020-06-23 宁波奥克斯电气股份有限公司 Air conditioner performance test tool and air conditioner performance test system
CN115629058A (en) * 2022-09-16 2023-01-20 大连理工大学 Standard reaction device for measuring photoreaction quantum yield and measuring method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111323251A (en) * 2020-04-14 2020-06-23 宁波奥克斯电气股份有限公司 Air conditioner performance test tool and air conditioner performance test system
CN115629058A (en) * 2022-09-16 2023-01-20 大连理工大学 Standard reaction device for measuring photoreaction quantum yield and measuring method thereof

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